SMR.INTEL
OKLOAurora+15MW.SMRSMRVOYGR+77MW.NuScaleNNENano Nuclear+Micro.ReactorLTBRLightbridge+Fuel.TechLEUCentrus+HALEU.ProdCCJCameco+Uranium.SupplyUECUranium Energy+U3O8.MiningCEGConstellation+TMI.RestartGEVGE Vernova+BWRX-300BWXBWXT+TRISO.FuelFUND.YTD2025-26$2.5B+.Raised
Terminal/Reactor DB/Hermes
under constructionfhr · FLiBe molten salt

Hermes

Reactor Type
fhr
Electrical Output
Non-power demo
Thermal Output
35 MWth
Coolant
FLiBe molten salt
Enrichment
HALEU (5-20%)
Refueling Interval
null
Design Life
null
Passive Safety
Yes
Load Following
No
Target LCOE
null
Country
USA
Status
UNDER CONSTRUCTION
About

Non-power demonstration reactor. First advanced reactor to receive NRC construction permit (Dec 2023). First safety-related concrete pour May 2025 at Oak Ridge, Tennessee.

Kairos Power — Funding Summary
Total Funding
$300M+